Frequently-asked questions for Mozilla Monitor.
The first step in getting help with your tab hoarding problem is to admit you have a tab hoarding problem. Whatever the reason may be—your job requires you to have dozens of open tabs or the rows of tabs represent your neverending “read...
Logs information associated with a web page: network requests, JavaScript, CSS, security errors and warnings as well as error, warning and informational messages explicitly logged by JavaScript code running in the page context Enables you to interact with a web page by executing JavaScript...
The MDN Web Docs site provides information about Open Web technologies including HTML, CSS, and APIs for both Web sites and progressive web apps.
Topics tagged feedback
Topics tagged add-on-reviews
Data protection laws for EU, EEA, Swiss, California, Connecticut, Virginia and Utah users.
view and edit all the stylesheets associated with a page create new stylesheets from scratch and apply them to the page import existing stylesheets and apply them to the page To open the Style Editor select the Style Editor panel in the...
Learn how to deploy Firefox on macOS using pkg and Jamf
Learn about permission requests when adding extensions to Firefox. Get details on each request for a clearer understanding.